The letter, coordinated by the Brexit Civil Society Alliance, points to the “growing body of evidence” that shows that a no-deal Brexit would be “detrimental to civil society and the communities that we work with” and would have “drastic and wide-ranging implications”.

And it warns that voluntary organisations have not had “adequate support, resources and engagement” from the government in preparation for a no-deal Brexit.

Inclusion Scotland said this week that the proposed suspension of parliament and the growing likelihood of a no-deal Brexit “poses direct threats to Scots disabled people”.

Among its concerns are that disabled people would be disproportionately affected by any food shortages or price hikes because they are more likely to be living in poverty.

Any Brexit-related staffing shortage within health and social care would also disproportionately impact disabled Scots, said Inclusion Scotland.

And post no-deal changes to immigration laws are likely to impact on the availability of personal assistants (PAs), which could see disabled people “slide back” into depending on institutions and being unable to live independently at home.

Although current EU nationals employed as PAs “may well achieve settled status” after Brexit, disabled people may not be able to recruit replacements if restrictions are placed on immigration from the EU.

A no-deal Brexit could also have “serious implications” for disabled people’s access to medicines and medical technologies.

Susie Fitton, policy officer for Inclusion Scotland’s Independent Living in Scotland project, summarised the key fears of disabled people in Scotland as “uncertainty, predicted economic shock and issues with shortage of essentials”.

She said that among the “chaos and clamour” of the Brexit process, “very few people are considering the potentially life-threatening consequences to disabled people of leaving the EU without a deal”.

Fitton said: “Which of our UK politicians are reassuring disabled people that their lives will not be threatened by food or medicine shortages, or that they will work to ensure staffing shortages within health and social care, already at crisis levels across the UK, are not exacerbated by a no-deal Brexit?”

She added: “The failure by the UK government to reassure disabled people that their lives will not be blighted by Brexit is truly shocking, but not that surprising given that this is a government that will be remembered for the damage and destitution caused by the roll-out of universal credit and the bedroom tax.

“Disabled people’s fears about a no-deal Brexit have been nowhere near the top of the UK government’s agenda on Brexit.

“Our fear is that the proroguing of parliament [the government’s decision to end this session of parliament next week until 14 October] will only cement that.

“Disabled people need firm commitments from the UK government that their rights and services will be safeguarded as we leave the EU, deal or no-deal, and without parliamentary scrutiny such assurances are looking less and less likely.”

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